First of all, a bank needs to have an evaluation system for giving loans because it reduces the risk of not paying back. The second reason is that this system helps define how much money a bank can borrow.
This system analyses your income, your working experience, number of children and marital status. And the most important your credit history. Everything affects your result, even your education. So if your credit reputation isn’t clear, it will be harder to get a loan. Every bank prefers reliable clients. People who had problems with loans in their past, very often use
Installment Credits for bad credit, because of the evaluation system for these credits in more loyal. Also, they can give a loan to refinance a bad loan. It is a good way to optimize all your credit payments.